CN113926647A

CN113926647A - Coating machine

Info

Publication number: CN113926647A
Application number: CN202111181011.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Ningbo Baoneng Intelligent Equipment Co ltd
Current assignee: Ningbo Baoneng Intelligent Equipment Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-01-14
Anticipated expiration: 2041-10-11
Also published as: CN113926647B

Abstract

The invention discloses a coating machine, comprising: a frame; the conveying belt is used for conveying the plate along the conveying direction; the automatic feeding assembly and the scraping plate mechanism are respectively arranged on the rack and are sequentially arranged above the conveying belt along the conveying direction; the automatic feeding device comprises a scraper mechanism, an automatic feeding assembly, a coating area, a coating material conveying mechanism and a coating material conveying mechanism, wherein the scraper mechanism and the automatic feeding assembly are jointly surrounded to form the coating area, and a plate can sequentially pass through the lower position of the automatic feeding assembly, the coating area and the lower position of the scraper mechanism; the automatic feeding assembly is provided with an accommodating cavity, a material inlet and a material outlet; and the scraping plate mechanism can lift and/or turn relative to the plane of the conveying belt. The technical scheme can automatically realize the feeding and coating operation of the mortar materials on the plates, has high automation degree and better stability, is suitable for the operation of the plates with different sizes, and greatly lightens the workload of operators.

Description

Coating machine

Technical Field

The invention relates to the technical field of coating machinery, in particular to a coating machine.

Background

A coating machine is an apparatus for forming a coating layer on a product surface. The coating method can be divided into spraying and blade coating according to different coating methods, and the prior coating machine adopting the blade coating method is more adopted when processing the stone-like decorative plate in the building field, namely, a coating layer is prepared on a rock wool substrate by the coating machine, wherein the blade coating refers to that colloidal or pasty coating is scraped on the surface of a product to form a coating layer with a certain thickness.

In actual production, because the plates are conveyed on the conveying belt one by one in the coating process, an operator needs to continuously put mortar materials on the upper surfaces of the plates, the automation degree is low, and the workload of the operator is large; meanwhile, only the upper surface of the plate can be coated in the whole blade coating operation, and follow-up work is required to be executed for three-side blade coating products with certain requirements including side coating; and the operation of cleaning in the non-working state of the coating machine is also very complicated and inconvenient.

Disclosure of Invention

In view of the above-mentioned problems in the prior art, the present application aims to solve at least one of the above-mentioned technical problems, and in particular to provide a coating machine which is capable of automatically feeding and coating mortar materials on a plate material, so as to overcome the above-mentioned technical disadvantages.

The specific technical scheme is as follows:

a coating machine comprising:

a frame;

the conveying belt is arranged on the rack and used for conveying the plates along the conveying direction;

the automatic feeding assembly and the scraping plate mechanism are respectively arranged on the rack and are sequentially arranged above the conveying belt along the conveying direction of the conveying belt;

the automatic feeding device comprises a scraper mechanism, an automatic feeding assembly, a conveying belt and a conveying belt, wherein a coating area is formed between the scraper mechanism and the automatic feeding assembly in a surrounding mode, and plates conveyed on the conveying belt can sequentially penetrate through the lower position of the automatic feeding assembly, the coating area and the lower position of the scraper mechanism;

the automatic feeding assembly is provided with at least one accommodating cavity for accommodating mortar materials, at least one material inlet for injecting the mortar materials into the accommodating cavity and at least one material outlet for allowing the mortar materials in the accommodating cavity to flow out to the upper surface of the mortar materials in the coating area; and the scraping plate mechanism can lift and/or turn relative to the plane of the conveying belt.

Preferably, the scraper mechanism comprises a scraper plate and two side plates detachably mounted on the scraper plate, and a scraping channel which is integrally shaped like 'Jiong' is formed by enclosing the lower end face of the scraper plate and the opposite side of the two side plates, and the scraping channel allows the plate to pass through and performs three-side scraping operation on the plate through three side walls of the scraping channel when the plate passes through.

Preferably, the two side plates are respectively installed on the front end face of the scraper through a plurality of fasteners, and the front end face of the scraper is provided with a plurality of screw holes for screwing the fasteners along the length direction.

Preferably, the automatic feeding assembly comprises a storage box and a supporting seat, the storage box is provided with a containing cavity, a material inlet and a material outlet, and the supporting seat is used for fixedly mounting the storage box on the rack and suspending the storage box above the conveying belt.

Preferably, the two sides of the storage box are provided with extension plates protruding forwards, the two sides of the rear end face of the scraper are respectively provided with a guide plate protruding backwards, and the storage box, the extension plates, the scraper and the guide plate jointly enclose a coating area.

Preferably, the number of the material outlets is multiple, and the material outlets are arranged on the front end face and the rear end face of the material storage box in an array manner.

Preferably, the scraper mechanism is installed in the frame by a scraper adjusting device, the scraper adjusting device comprises two first supports erected on the two sides of the transmission belt on the frame, two first lifting mechanisms respectively installed on the two first supports correspondingly, and two turnover mechanisms respectively installed at the lower ends of the two first lifting mechanisms, the two ends of the scraper mechanism are respectively and fixedly installed on the two turnover mechanisms, the first lifting mechanisms are used for driving the turnover mechanisms and the scraper mechanism to vertically lift relative to the plane of the transmission belt, and the turnover mechanisms are used for driving the scraper mechanism to turn over relative to the plane of the transmission belt.

Preferably, the first lifting mechanism comprises a transverse screw rod and a longitudinal screw rod which are movably mounted on the first support and are meshed with each other, the lower end of the longitudinal screw rod is in transmission connection with the base body of the turnover mechanism, and the lower end of the longitudinal screw rod can rotate relative to the base body so as to convert the circumferential rotation of the transverse screw rod and the circumferential rotation of the longitudinal screw rod into the longitudinal movement of the base body.

Preferably, tilting mechanism includes and installs the pedestal on first support through the rail groove structure, has arranged the gear train in the pedestal, and scrapes the final gear that the both ends transmission of plate mechanism is connected to the gear train respectively, wears to be equipped with the dwang on the central through-hole of the one-level gear of gear train.

Preferably, the opposite ends of the two transverse screw rods and the opposite ends of the two rotating rods are respectively connected through a coupler and an extension rod.

Preferably, a dial gauge is further scribed at the movable connection part of the first support and the seat body.

Preferably, still include the elasticity compression roller subassembly, the elasticity compression roller subassembly is arranged in the top position of transmission band and is located the rear direction of automatic feed subassembly on the direction of transportation of transmission band.

Preferably, the elastic press roll component comprises two second supports which are transversely arranged on the two sides of the transmission belt on the rack, two second lifting mechanisms which are respectively and correspondingly arranged on the two second supports, and at least one elastic press roll, and the two ends of each elastic press roll are respectively and rotatably connected to the lower ends of the two second lifting mechanisms.

Preferably, the transmission belt is arranged on the frame through at least two rotating rollers, and at least one of the rotating rollers is in transmission connection with an output shaft of a driving motor.

Preferably, a residual material collecting assembly is further arranged in the rack below the conveying belt, the residual material collecting assembly comprises a hopper arranged at a position right below the conveying belt and a collecting box located at a position below the hopper, and an upper opening of the collecting box is right opposite to a lower opening of the hopper.

Preferably, the residual material collecting assembly further comprises a residual material collecting groove arranged at a position right below the rotating roller at the tail end of the conveying belt in the conveying direction, a hairbrush scraper is further installed at a position between the conveying belt and the residual material collecting groove on the rack, and a hairbrush is arranged on one side, in contact with the conveying belt, of the hairbrush scraper.

Preferably, the inner bottom surface of the residue collecting groove is obliquely arranged towards one side.

Preferably, still have two in the frame and arrange the push pedal mechanism in the transmission band both sides relatively, and at least a part of push pedal mechanism lies in the upstream direction of elasticity compression roller subassembly on following the transmission band direction of transportation, and each push pedal mechanism all includes one can be to the push pedal of perpendicular to transmission band direction of transportation activity and be used for promoting the push rod of push pedal activity, and the push rod by the mobilizable installation in the frame of support seat.

Preferably, each push plate mechanism further comprises two auxiliary push rods, and each auxiliary push rod is installed on the rack through at least one linear bearing and a bearing seat.

Preferably, the rack is further provided with a washing assembly, the washing assembly comprises a water outlet pipe transversely erected above the conveying belt, the water outlet pipe is provided with a water inlet used for being connected with an external water supply pipeline and at least one water outlet, and at least one of the water outlets is located right above the coating area.

Preferably, a residual material auxiliary cleaning device is further installed in the front position of the scraper adjusting device on the rack, the residual material auxiliary cleaning device comprises a third support, a third lifting mechanism and a residual material scraper, the third support is transversely arranged on the rack, the third lifting mechanism is arranged on the third support, the residual material scraper is connected to the lower end of the third lifting mechanism, the residual material scraper is located right above the conveying belt, and the residual material scraper can be flatly attached to the conveying belt under the action of the third lifting mechanism and is used for assisting in scraping residual materials adhered to the conveying belt.

The beneficial effects of the above technical scheme are that:

(1) the coating machine comprises a rack, a transmission belt, an automatic feeding assembly and a scraping plate mechanism, wherein a coating area is formed between the automatic feeding assembly and the scraping plate mechanism, a material inlet of the automatic feeding assembly is connected with an external feeding device to inject mortar materials into the accommodating cavity, and in the process that the plate passes through the coating area, the mortar materials flow out of a material outlet to the upper surface of the plate and are scraped by the scraping plate mechanism when passing through the scraping plate mechanism, so that the feeding and coating operations of the mortar materials on the plate can be automatically realized, the automation degree is high, the stability is good, the coating machine is suitable for plate operations of different sizes, and the work burden of operators is greatly reduced;

(2) the lower end surface of the scraper and the opposite side of the two side plates jointly enclose a scraping channel which is shaped like a Chinese character 'Jiong', so that the scraping operation on three sides of a plate can be realized;

(3) at least one water outlet of the water washing assembly is positioned right above the coating area, water can be automatically discharged for washing under the non-working state of the coating machine, particularly the coating area and the conveying belt are washed, and the operation of cleaning the conveying belt is carried out by matching with a hairbrush scraper under the running state of the conveying belt;

(4) the scraper mechanism is installed on the frame by a scraper adjusting device, and the scraper adjusting device comprises a first support, a first lifting mechanism and a turnover mechanism, and can realize the lifting and turnover functions of the scraper mechanism.

Drawings

FIG. 1 is a perspective view of a coating machine of the present invention;

FIG. 2 is a perspective view of another perspective of the coating machine of the present invention;

FIG. 3 is a perspective view of a residue collection assembly on a frame of a coating machine of the present invention;

FIG. 4 is a perspective view of a pusher mechanism in the coating machine of the present invention;

FIG. 5 is a perspective view of the various components of the frame of the coating machine of the present invention in a split configuration;

FIG. 6 is a perspective view of the automatic feed assembly and scraper member of the coating machine of the present invention;

FIG. 7 is a perspective view of a blade member and a blade adjusting device in the coating machine of the present invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings. And the direction of the arrow shown in fig. 1 is the conveying direction on the conveyor belt and defines the direction along which the present apparatus is conveyed from back to front.

Referring to fig. 1 to 7, the coating machine according to the present embodiment includes:

a frame 1;

the conveying belt 2 is arranged on the rack 1 and used for conveying the plates along the conveying direction;

the automatic feeding assembly 3 and the scraping plate mechanism 4 are respectively arranged on the rack 1 and are sequentially arranged above the conveying belt 2 along the conveying direction of the conveying belt 2;

a coating area 10 is formed between the scraper mechanism 4 and the automatic feeding assembly 3 in a surrounding manner, and plates conveyed on the conveying belt 2 can sequentially pass through the lower position of the automatic feeding assembly 3, the coating area 10 and the lower position of the scraper mechanism 4;

the automatic feeding assembly 3 is provided with at least one accommodating cavity for accommodating mortar materials, at least one material inlet 32 for injecting the mortar materials into the accommodating cavity, and at least one material outlet 33 for allowing the mortar materials in the accommodating cavity to flow out to the upper surface of the mortar materials in the coating area 10; and the scraping plate mechanism 4 can lift and/or turn relative to the plane of the conveying belt 2.

Based on above-mentioned technical scheme, the coating machine includes frame 1, transmission band 2, automatic feed subassembly 3, scraper mechanism 4, and it has coating region 10 to constitute between automatic feed subassembly 3 and the scraper mechanism 4, the material import 32 of automatic feed subassembly 3 meets with outside feedway, with pour into the mortar material into to the holding intracavity, and at panel process coating region 10 in-process, the mortar material flows to panel upper surface by material export 33, and strickle the operation by scraper mechanism 4 to the mortar material when scraper mechanism 4, make can automize the coating operation that realizes the mortar material on the panel, degree of automation is high, and stability is better, be applicable to not unidimensional panel operation, operating personnel's work burden has been alleviateed greatly.

In a preferred embodiment, as shown in fig. 5 to 7 in particular, the scraper mechanism 4 comprises a scraper 41, two side plates 42 detachably mounted on the scraper 41, and a scraping channel shaped as "Jiong" as a whole is defined by the lower end surface of the scraper 41 and the opposite side of the two side plates 42, and allows the passage of the sheet and three-sided scraping operation of the sheet by three side walls of the scraping channel when the sheet passes through. Based on above-mentioned technical scheme, scraper blade 41 and two blocks of curb plates 42's setting for can realize the purpose to the trilateral blade coating operation of panel, and two blocks of curb plates 42 are removable and relative position is adjustable, can be applicable to the panel of different size width, and the suitability is wider, and is convenient for maintain the maintenance. Further, the two side plates 42 are respectively mounted on the front end surface of the scraper 41 through a plurality of fasteners, and the front end surface of the scraper 41 is provided with a plurality of screw holes for screwing the fasteners along the length direction thereof, so that the side plates 42 can adjust the position, and the fastening and mounting structure is simple and stable, but obviously, the technical purpose can also be achieved through modes such as a buckle, a sliding groove and the like, and the invention is not limited thereto.

As a further preferred embodiment, the automatic feeding assembly 3 includes a storage box 31 and a support 34, the storage box 31 has the above-mentioned accommodating cavity, a material inlet 32 and a material outlet 33, and the support 34 is used for fixing the storage box 31 on the rack 1 and suspending over the conveyor 2. Furthermore, both sides of the storage box 31 are provided with an extension plate 35 protruding forward, both sides of the rear end surface of the scraper 41 are respectively provided with a deflector 43 protruding backward, and the storage box 31, the extension plate 35, the scraper 41 and the deflector 43 jointly enclose the coating area 10. Further, the number of the material outlets 33 is plural, and the material outlets are arranged in an array on the front end face and the rear end face of the material storage box 31.

As a further preferred embodiment, referring to fig. 5 and 7, the scraper mechanism 4 is installed on the frame 1 by a scraper adjustment device 9, the scraper adjustment device 9 includes two first brackets 91 erected on the frame 1 at two sides of the conveyor belt 2, two first lifting mechanisms respectively installed on the two first brackets 91 correspondingly, and two turnover mechanisms respectively installed at the lower ends of the two first lifting mechanisms, and two ends of the scraper mechanism 4 are respectively and fixedly installed on the two turnover mechanisms, the first lifting mechanism is used for driving the turnover mechanism and the scraper mechanism 4 to vertically lift relative to the plane where the conveyor belt 2 is located, and the turnover mechanism is used for driving the scraper mechanism 4 to turn over relative to the plane where the conveyor belt 2 is located, so as to achieve the lifting and turning functions of the scraper mechanism 4. Obviously, for different working requirements, only the first lifting mechanism or only the turning mechanism may be designed, so that the scraper mechanism 4 only has the lifting or turning function, but the present embodiment adopts the functions of both, and is not limited thereto.

As a further preferred embodiment, the first lifting mechanism includes a transverse screw 92 and a longitudinal screw 93 movably mounted on the first bracket 91 and engaged with each other, a lower end of the longitudinal screw 93 is connected to a seat 95 of the turnover mechanism in a transmission manner, and a lower end of the longitudinal screw 93 can rotate relative to the seat 95 to convert the circumferential rotation of the transverse screw 92 and the longitudinal screw 93 into the longitudinal movement of the seat 95. Specifically, the base is provided with a threaded seat engaged with the periphery of the longitudinal screw rod 93, the longitudinal screw rod 93 simultaneously performs circumferential rotation and longitudinal linear motion under the action of the transverse screw rod 92, and the lower end of the longitudinal screw rod 93 is connected with the seat body 95 through a ball head or a T-shaped head structure to allow the longitudinal screw rod 93 to longitudinally move. Further, a first hand wheel 94 is connected to one side of the transverse screw rod 92 to realize the function of manual adjustment. Further, tilting mechanism includes that the pedestal 95 of installing on first support 91 through the rail groove structure is provided with the gear train in the pedestal 95, and scrapes the both ends of plate mechanism 4 and transmit the last gear that is connected to the gear train respectively, wears to be equipped with the dwang on the central through-hole of the one-level gear of gear train to realize scraping plate mechanism 4's upset function. Specifically, a second wheel 96 is connected to one end of the rotatable lever to perform the function of manual adjustment. Furthermore, the opposite ends of the two transverse screws 92 and the opposite ends of the two rotating rods are respectively connected through a coupler and an extension rod, so as to achieve the purpose of synchronous adjustment. Furthermore, a scale is carved at the movable connection part of the first bracket 91 and the base 95 for accurately adjusting the lifting amplitude of the first lifting mechanism.

It should be noted that, in the present embodiment, the first lifting mechanism and the turning mechanism are both manually adjusted for displacement, but for the purpose of using the scraper mechanism 4, the present apparatus may also be implemented in an electric or pneumatic manner, for example, a plurality of manners such as a motor, an electric push rod, and an air cylinder may be implemented, and the above-mentioned screw set structure may also be implemented in a gear set or other equivalent manners, which is not limited to this.

In a preferred embodiment, as shown in fig. 2 and 5 in particular, the coating machine further includes an elastic roller assembly 5, the elastic roller assembly 5 being disposed at a position above the conveyor belt 2 and in a direction behind the automatic feeding assembly 3 in the conveying direction of the conveyor belt 2, for maintaining a flat moving state of the sheet material on the conveyor belt 2. Further, the elastic pressing roller assembly 5 includes two second brackets 51 transversely mounted on the frame 1 at two sides of the conveyor belt 2, two second lifting mechanisms 52 respectively and correspondingly mounted on the two second brackets 51, and at least one elastic pressing roller 53, and two ends of each elastic pressing roller 53 are respectively rotatably connected to the lower ends of the two second lifting mechanisms 52. Further, in the present embodiment, the structure of the second bracket 51 is substantially the same as the structure of the first bracket 91, the structure of the second lifting mechanism 52 is substantially the same as the structure of the second lifting mechanism 52, and a third handle is also disposed on the second lifting mechanism 52, so as to manually adjust the distance between the elastic pressing roller 53 and the conveyor belt 2, but obviously, the lifting purpose can also be achieved by a motor screw rod structure, an air cylinder structure or an electric push rod structure, and is not limited thereto. Specifically, the second lifting mechanism 52 adopts a screw rod group structure, the screw rod group structure comprises a transverse screw rod and a longitudinal screw rod which are engaged with each other, one end of the transverse screw rod is connected with the third handle, the longitudinal screw rod is arranged on the second bracket 52 through a threaded seat, and the lower end of the longitudinal screw rod can be connected with the compression roller supporting plate 54 in a relatively rotatable manner, so that the circumferential rotation of the transverse screw rod and the longitudinal screw rod is converted into the longitudinal linear motion of the elastic compression roller 53. In addition, in order to synchronize the movement of the screw groups on both sides, the two transverse screws 92 are connected to each other through a coupling and an extension shaft.

As a further preferred embodiment, specifically referring to fig. 3, the conveyor belt 2 is mounted on the frame 1 by at least two rotating rollers 11, and at least one of the rotating rollers 11 is in transmission connection with an output shaft of a driving motor, so as to realize the conveying function of the conveyor belt 2. Further, a residual material collecting assembly 8 is further arranged in the machine frame 1 at a position below the conveying belt 2, the residual material collecting assembly 8 comprises a hopper 81 arranged at a position right below the conveying belt 2 and a collecting box 82 arranged at a position below the hopper 81, and an upper opening of the collecting box 82 is right opposite to a lower opening of the hopper 81. Further, the residue collecting assembly 8 further includes a residue collecting groove 83 disposed under the rotating roller 11 at the end of the conveying belt 2 in the conveying direction, and a brush scraper 84 is further installed at a position between the conveying belt 2 and the residue collecting groove 83 on the frame 1, and a side of the brush scraper 84 contacting the conveying belt 2 is provided with a brush for cleaning the residue mortar material adhered to the conveying belt 2 or cleaning water as described below to fall into the residue collecting groove 83 as much as possible. Further, the inner bottom of the residue collecting groove 83 is obliquely arranged to one side so as to facilitate the operator to clean the inner residue or to flow out the residue through the lower opening.

As a further preferred embodiment, in combination with fig. 4, the frame 1 further has two push plate mechanisms 7 oppositely disposed on two sides of the conveying belt 2, and at least a portion of the push plate mechanisms 7 is located in an upstream direction of the elastic pressing roller assembly 5 along a conveying direction of the conveying belt 2, and each push plate mechanism 7 includes a push plate 71 movable perpendicular to the conveying direction of the conveying belt 2 and a push rod 72 for pushing the push plate 71 to move, and the push rod 72 is movably mounted on the frame 1 by a bracket base. Further, in the embodiment, the purpose of pushing the push plate 71 is achieved by the screw rod plus the movable T-shaped head and the handle structure, but obviously, the purpose of pushing can also be achieved by a plurality of electric modes such as a motor, an electric push rod, an air cylinder, and the like, and is not limited thereto. Two push pedal 71's interval is adjustable, can effectively ensure to send into the not off tracking of panel centering of transmission band 2 to get into the regional 10 in-process of coating at next step and avoid appearing the not coating of unilateral or the incomplete problem of coating, and make this equipment be applicable to the panel of various size width simultaneously, the practicality is stronger. Furthermore, each push plate mechanism 7 further includes two auxiliary push rods 75, and each auxiliary push rod 75 is mounted on the frame 1 by at least one linear bearing and a bearing seat 74, so as to avoid the problems of fatigue, damage, bending and the like caused by excessive stress on the push rod 72. In addition, a rotating wheel 73 is also arranged at one end of the push rod 72, which is far away from the push plate 71.

In a preferred embodiment, as shown in fig. 1, 5 to 7 in particular, the frame 1 is further provided with a washing assembly, the washing assembly comprises a water outlet pipe 6 transversely mounted above the conveyor belt 2, the water outlet pipe 6 is provided with a water inlet 62 for connecting an external water supply pipeline and at least one water outlet 61, and at least one of the water outlets 61 is positioned right above the coating area 10 for automatically discharging water for cleaning in the non-operating state of the coating machine, in particular, for cleaning the coating area 10 and the conveyor belt 2, and for cleaning the conveyor belt 2 in cooperation with the above-mentioned brush scraper 84 in the operating state of the conveyor belt 2.

As a further preferred embodiment, as shown in fig. 1 and fig. 2 in particular, a residual material auxiliary cleaning device is further installed on the frame 1 in front of the scraper adjustment device 9, the residual material auxiliary cleaning device includes a third support transversely mounted on the frame 1, a third lifting mechanism disposed on the third support, and a residual material scraper connected to a lower end of the third lifting mechanism, and the residual material scraper is located right above the conveyor belt 2, and can be flatly attached to the conveyor belt 2 by the third lifting mechanism to assist in scraping residual materials adhered to the conveyor belt 2, and the third lifting mechanism is a linear motor or a cylinder, which is not limited thereto.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A coating machine, characterized by comprising:

a frame (1);

the conveying belt (2) is arranged on the rack (1) and used for conveying the plates along the conveying direction;

the automatic feeding assembly (3) and the scraping plate mechanism (4) are respectively arranged on the rack (1) and are sequentially arranged above the conveying belt (2) along the conveying direction of the conveying belt (2);

a coating area (10) is formed between the scraper mechanism (4) and the automatic feeding assembly (3) in a surrounding manner, and plates conveyed on the conveying belt (2) can sequentially pass through the lower position of the automatic feeding assembly (3), the coating area (10) and the lower position of the scraper mechanism (4);

the automatic feeding assembly (3) is provided with at least one accommodating cavity for accommodating mortar materials, at least one material inlet (32) for injecting the mortar materials into the accommodating cavity, and at least one material outlet (33) for allowing the mortar materials in the accommodating cavity to flow out to the upper surface of the mortar materials in the coating area (10); and the scraping plate mechanism (4) can lift and/or turn relative to the plane of the conveying belt (2).

2. The coating machine according to claim 1, wherein said blade mechanism (4) comprises a blade (41), two side plates (42) detachably mounted to said blade (41), and a blade passage is defined by a lower end face of said blade (41) and an opposite side of said two side plates (42) together, said blade passage allowing the passage of the sheet and allowing the three-sided blade operation of the sheet by three side walls of said blade passage as the sheet passes therethrough.

3. The coating machine as claimed in claim 2, wherein two of said side plates (42) are respectively mounted to the front end surface of said blade (41) by a plurality of fasteners, and the front end surface of said blade (41) is provided along the length thereof with a plurality of screw holes to which said fasteners are screwed.

4. The coating machine according to claim 2 or 3, characterized in that said automatic feeding assembly (3) comprises a magazine (31), a support (34), and said magazine (31) has said receiving chamber, a material inlet (32) and a material outlet (33), and said support (34) is used to fix said magazine (31) to said frame (1) and to suspend it in a position directly above said conveyor belt (2).

5. The coating machine as claimed in claim 4, wherein both sides of said storage tank (31) are provided with an extension plate (35) protruding forward, and both sides of the rear end face of said scraper (41) are respectively provided with a deflector (43) protruding backward, and said storage tank (31), extension plate (35), scraper (41) and deflector (43) jointly enclose said coating region (10).

6. A coating machine as claimed in claim 1, characterized in that said blade mechanism (4) is mounted on said frame (1) by a blade adjusting device (9), the scraper adjusting device (9) comprises two first supports (91) erected at two sides of the conveyor belt (2) on the frame (1), two first lifting mechanisms respectively installed on the two first supports (91) correspondingly, and two turnover mechanisms respectively installed at the lower ends of the two first lifting mechanisms, and both ends of the scraper mechanism (4) are respectively and fixedly arranged on the two turnover mechanisms, the first lifting mechanism is used for driving the turnover mechanisms and the scraper mechanism (4) to longitudinally lift relative to the plane where the conveyor belt (2) is located, the turnover mechanism is used for driving the scraping plate mechanism (4) to turn over relative to the plane where the conveying belt (2) is located.

7. The coating machine as claimed in claim 6, wherein said first lifting mechanism comprises a transverse screw (92) and a longitudinal screw (93) movably mounted on said first support (91) and engaged with each other, a lower end of said longitudinal screw (93) is drivingly connected to a base (95) of said turnover mechanism, and a lower end of said longitudinal screw (93) is rotatable relative to said base (95) for converting circumferential rotation of said transverse screw (92) and said longitudinal screw (93) into longitudinal movement of said base (95).

8. The coating machine according to claim 7, characterized in that said turning mechanism comprises a base body (95) mounted on said first support (91) through a rail-groove structure, a gear set is arranged in said base body (95), and two ends of said scraper mechanism (4) are respectively connected to the last gears of said gear set in a transmission manner, and a rotating rod is arranged on the central through hole of the first gear of said gear set in a penetrating manner.

9. The coating machine according to claim 1, characterized in that a residual material collecting assembly (8) is further provided in said frame (1) at a position below said conveyor belt (2), said residual material collecting assembly (8) comprising a hopper (81) arranged at a position directly below said conveyor belt (2), a collecting box (82) located at a position below said hopper (81), and an upper opening of said collecting box (82) being directed to a lower opening of said hopper (81);

the residual material collecting assembly (8) further comprises a residual material collecting groove (83) arranged at a position under the rotating roller (11) at the tail end of the conveying belt (2) in the conveying direction, a brush scraper (84) is further installed at a position between the conveying belt (2) and the residual material collecting groove (83) on the rack (1), and a brush is arranged on one side, which is contacted with the conveying belt (2), of the brush scraper (84).

10. A coating machine as claimed in claim 1, wherein said frame (1) is further provided with a water washing assembly, said water washing assembly comprising a water outlet pipe (6) transversely mounted above said conveyor belt (2), and said water outlet pipe (6) being provided with a water inlet (62) for connection to an external water supply line, and at least one water outlet (61), and at least one of said water outlets (61) being located directly above said coating zone (10).